Printing machine



Aprifi 9, 192%. J, KRELL L7818 PRINTING MACHINE Filed Aug. 16, 1927 6 Sheets-Sheet 1 /N V N Tog imam Aprifi 9 1929., J. KRELL PRINTING MACHINE Filed Aug. 16,, 1927 6 Sneaks-Sheet 2 Apnifi 9 3929. J. KRELL. 1,7@$,18

PRINTING MACHINE 6 Sheets-Sheet 5 Filed Aug. 16, 1927 PRINTING MACHINE Filed Aug. 16, 192'? 6 Sheecs-Sheet .4

Jikr ll Agorrifl 9, 3929. J. KRELL PRINTING MACHINE Filed Aug. 16, 1927 6 Sheets-Sheet 5 a T y m? MWW J W Patented Apr. 9, 192% was JOSEPH KRELL, 01E BERLIN-PANKOW, GERMANY rnin'rrne MACHINE.

Application filed August 16, 1927, 'Serial No. 213,402, and in. Germany August 26, 1926.

printlng machlnes,

. My invention relates to addresses, of the particularly for printing type in which a plurality of printing pads are supported in a turret on a rocking printing arm, and it is an object of myinvention to provide manually controlled means for operating the turret.

To this end I provide a handle which is otherwise adapted to be displaced on the printing arm, and I translate the motion of the handle into rotation of the turret by suitable gearing.

In this manner, I obtain a very simple construction of the turret and reduce the stress form or list by on the mechanisms for rotating and for looking the turret.

At the same time, by suitably designing the printing pads of the turret, I am able to vary the impressions from any printing plate as I may desire by either printing the matter thereon completely or partly on the same bringing various printing pads of the turret into operative position.

Preferably the handle is operatively connected with a detent for the turret, so that upon displacing the handle from its normal or initial position the turret is released for rotation, and preferably the mechanism which rotates the turret is arranged to lag with respect to the releasing of the turret.

In the accompanying drawings, a machine embodying my invention is illustrated diagrammatically by way of example,

In the drawings,

Figs. 1 to v illustrate a machine having a turret with three pads, and Figs. 6 to illustrate a machine having a turret with two pads and slightly modified as compared with the machine-illustrated in Figs. 1 to 5.

' More particularly Fig. 1 is a perspective illustration of the printing arm 'and turret of the machine having the turret with the three pads,

Fig. 2 is an elevation of these parts in the initial or normal position of the handle, viewed as indicated by the arrow in Fig. 1,

Fig. 3 is a plan view corresponding to F '2, .1

Figs. 4 and 5 aredetail viewsshowing the operating mechanism of the'turret in two distinct positions. v 1 i Fig. 6 is a perspective illustration of the printing arm and turret of the machine having the turret with the two pads,

' ig. 7 is an elevation,

I means, not shown, 9

Referring now to the drawings, and first to Figs. 1 to 5,1 is the table of the machine, 2 is a frame for the printing plates 3, 4 are guides along which the plates 3 are moved to the printing station, and 6 is a ribbon extending across the plates at the printing station. The plates after having been printed are dropped into a receptacle, not shown.

7 is the printing arm which is fulcrulned on the table 1 at 8 and is rocked by suitable is a shaft secured in the fork-shaped end of the arm, 9 is a hollow shaft placed on the shaft 9, 10 is the turret which is secured on the hollow shaft and 11,

12, and 13 are the printing pads of the turret which are held therein so as'to be displayed radially within certain limits.

One end of the hollow turret shaft is carried in a bearing 7 of the arm 7, 14 is a locking plate secured on the hollow shaft outside the bearing 7 15 are three notches pitched equally about the shaft 9' in the edge of the plate 14, 16 is a ratchet wheel secured on the hollow shaft 9' beside the plate 14:, 17 is a pinion loosely mounted on the hollow shaft beside the ratchet Wheel16, 18 is a disc or an arm on the pinion, 19 is a pawl fulcrumed on the disc, and 20 is a spring tending to hold the pawl engaged with the teeth of the ratchet wheel. r v

2 is a shaft carried in the bearing 7 and a" parallel bearing 7", 22 is double-armed lever loosely mounted on the shaft, 21 is a sector formed on the double-armed lever and meshing with the pinion 17, and 24 is a detent pawl secured on the shaft 23 and adapted to engage one of the notches 15 of the plate 14 in the initial or normal position of parts. In this position, as indicated in Fig. 2, the lever 22 abuts against an abutment screw 25 on the arm 7.

26 is a handle fulcrumed on the doublearmed lever 22 at 27. The boss of the handle is fork-shaped and provided with a cam face 28 which is adapted to engage a corresponding face 29 on the lever 22. 30 is a spring wound on the shaft 23Vand'secured to the boss of the handle 26 at one end which tends to turn the handle 26 to hold the cam faces 28 and 29 disengaged. In this position, a pin 32 projecting downwardly from the-boss of the handle 26 ento the right in Fig. 2 and 7 moves down, the pad 11 will press the paper, etc., to be printed down on the ribbon 6, and

the printing plate which is at the station, will be printed:

Tf-it isglesired for the next operation to bring the": ad 12 to bear on the same printing plate- -which is retained at the station-the handle 26 is'rotated to the left in the direction of the arrow 35 which may be done while the arm 7 is moving. The rotation of the handle against the spring 30 causes the cam face 28 on the boss of the handle to engage the cam face 29 on the lever 22 as shown in Fig. 4. The lever 22 is left stationary while the faces are out of engagement but the pin 32 at the boss of the handle 26 lifts the detent 24 out of the notch in the plate 14 it hadv engaged. The turret 10 is now release and free for rotation which is effected by further motion of the handle 26 as shown in \Fig. 5. The lever 22 and its sector 21 are now rotated and impart rotation to the pinion 17 in the direction of the'arrow '36, Fig. 5. The pinion, through the medium of the pawl 19, entrains the ratchet wheel 16 on the hollow shaft 9' andimparts the turret 10 rotation in the same direction until the detent pawl engages the next notch under the action of its spring 34. The pin 32 does not .interfere with the hook 3? in this position The platen 12 is now in printing of parts. position and, when the handle 26 is released it will return. to its normalposition under the action of its spring 30, the pinion 17 rotating freely on the hollow shaft 9'.

Further rotation of the turret in order to place the printing pad 13 into printing position, is effected similarly by moving the handle 26 in the direction of the arrow 35- Finally, the pad 11 is returned to its printingposition in the same manner, if desired.

Referrin now to Figs. 6 to 10, identical parts have een marked with the same reference letters as in Figs. 1 to 5, and need not be described over again.

In this instance the turret has only, two printing pads 41 and 42 pitched at an angle of about 90 degrees with respect to each other which are inserted in the turret so as tomove therein radially within certain limits. 44 is a notched plate secured on the hollow shaft 9' outside the. bearing 7' and having two notches 45, 45 in its edge. 46 is a pinion, with part of its teeth cut away, which is loosely mounted on the hollow shaft 9, 47 is sector carried on a pin 49 inthe arm 7 and meshingwith the pinion, and 48 is a handle secured to the sector. 50 is a detent pawl -Fig. 7. After the detent pawl tion of the handle 48 in the one or ing arm, a pinion,

from the handleto adapted to engage one of the notches 45, 45 under the action of its spring 51. The pawl is rotatably carried on the shaft 45.

46 is an extension of the pinion 46, 52 is a pin on the extension, and 53 is an extended notch on the rim of the plate 44, which is engaged by the pin 52. 46 is a cam on the boss of the pinion 44. 55 is an adjustable abutment for the sector 47 on the arm 7.

In the position of parts as shown in Figs.

7 and 8, the pad 41 is in printing position. If it is desired to bring the pad 42 ;to bear on the same printing plate, the handle 48 is rotated in'the direction of the arrow 56, Fig. 7. This causes the pinion 46 to be rotated but the plate 44 is not entrained as the pin 52 is free to move in the extended notch 53. However, as soon as the handle is rotated, the came 54 will lift the detent pawl 50 out of the notch in the plate 44 which it had previously engaged, releasingthe'plate 44 and permitting it to be rotated by the pin 52. The direction of this rotation is indicated by thearrow 57, Fig. 9. lit is continued until the detent pawl 50 engages the next notch, 45, in the plate 44 under the action of its spring 51. This rotation is not'interfered with by 10 through about 90 after the detent pawl 50 has engaged the notch 45', the pad 42 is in printing position,

If it is desired to return the pad 41 into printing position,vthe handle is rotated in opposite direction as comparedwiththe arrow 56' in Fig. 9, that is, in the direction of the arrow 58, Fig. 10. The handle is in this manner returned into its initial position, 50 has-been thrown out by the cam 54, the'plate44 and, consequently, the turret 10, will return to the initial position as indicated by the arrow 59, Fig. 10. a

It will be understood that all that is required for exchanging the two pads is rotain the opposite direction.

I claim:

1; In an addressing or like printing machine, an upwardl ing printing arm, a turret rotatably mounted in said arm and having a pluralitv of printing pads distributed over its peripheral surface, a handle rotatably mounted on the print a hollow shaft rotatably supporting the pinion and also supporting the turret, a sector for permitting movement secured to the hollow shaft and having notches therein and a spring actuated pawl engaging in the notches for securing the adjusting rotary position .of the turret.

2. In an addressing or like printing may and downwardly swingthe pinion, a plate rigidly 46 which is adapted to lift the detent pawl 50 out of the notches of the plate the cam 54. Rotation of the plate 44 causes corresponding rotation 'of the turret degrees so that now, and

' tion alternately,

' position alternately.

chine, an upwardly and downwardly swinging printing arm, a turret rotatably mounted in said arm and having a plurality of printing pads distributed over its peripheral surface, a handle rotatably mounted on the printing arm, a pinion, a hollow shaft rotatably supporting the pinion and also supporting the turret, a sector for permitting movement from the handle to the pinion, a plate rigidly secured tothe hollow shaft and having notches therein and a spring actuated pawl engaging in the notches for securing the adjusting rotary position of the turret, said pawl being actuated incident to the initial movement of the handle to disengage the notched plate, said handle subsequently transmitting its movement to the notched plate.

3. In an addressing or like printing machine, an upwardly and downwardly swinging arm, a turret rotatably mounted in said armand having two printing pads arranged at an angle of approximately 90 to one another adapted to come intoprinting posi a handle rotatably mounted on the printing arm, a pinion, a hollow shaft rotatably supporting the pinion and also supporting the turret, a sector for permitting movement from the handle to the pinion, a plate rigidly secured having notches therein, and a spring-actuated pawl engaging thenotches for securing the adjust-mg rotary position of the turret.

4. An addressing or like printing machine, as c1aimed in claim 2, characterized in that the turret is provided with two printing pads arranged at an angle of approximately 90 to one another adapted to come into printing 5. An addressing machine, as claimed in claim 1, characterized by the. provision of a pin movable with the pinion, said notched plate having a recess therein coacting with said pin, and a cam carried by the pinion for to the hollow shaft and d rection, and a pin and slot driving connection coacting with the spring actuated pawl to disengage the latter from said notched plate during movement of the pin through the recess. I

6. An addressing machine, as claimed in claim 3, characterized by the provision of a pin movable'with the pinion, said notched plate having a recess therein coacting with said pin, and a cam carried by the pinion for coacting with the spring actuated pawl to disengage the latter from said notched plate during movement of the pin through the recess.

7. A machine as claimed in claim 1, characterized by the provision of a cam carried by the pinion and adapted to disengage the spring actuated pawl from the notched plate during movement of the handle in either direction.

8. A machine as claimed in claim 3, characterized by the provision of a cam carried by the pinion and adapted to disengage the spring actuated pawl from the notched plate during movement of the handle in either direction.

9. A machine as claimed in claim 1, characterized by the provision of a cam carried by the pinion and adapted to disengage the spring actuated pawl from the notched plate uring movement of the handle in either dibetWeen the pinion and notched plate permitting limited relative movement of the latter.

10. A machine as claimed in claim 3, characterized by the provision of a cam carried by the pinion and adapted to disengage the spring actuated pawl from the notched plate during movement of the handlein either direction, and a pin and slot driving connection between the pinion and the notched plate permitting limited relative rotary movement of the latter.

In testimony whereof I afiix my signature. 7

' JOSEPH KRELL. 

